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Finding the Fourth Proportional to 66,502.42, 99,768.66 and 22,130.92

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Solution

The fourth proportional to 66,502.42, 99,768.66 and 22,130.92 is: 33,201.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,502.42 : 99,768.66 = 22,130.92 : x
  2. Step 2: Convert to fraction form
    66,502.42/99,768.66 = 22,130.92/x
  3. Step 3: Cross multiply
    66,502.42x = 99,768.66 × 22,130.92
  4. Step 4: Simplify right side
    66,502.42x = 2,207,972,399.17
  5. Step 5: Solve for x
    x = 2,207,972,399.17/66,502.42
  6. Step 6: Final answer
    x = 33,201.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.